data science stack with mongodb and rstudio

Data Science Stack with MongoDB and RStudio

Building up an easy data science platform with RStudio server on top of your MongoDB

Winston Chen – Lead Software Engineer

What does Fliptop do?

• Predictive Lead Scoring, using data science– Pull opportunity/lead/contact data from CRM– Aggregate company data and social data from various

data sources and the internet– Over 3000 signals– Build conversion/revenue model– Predict lead conversion and revenue

Our Platform Stack

• Java/Scala• Liftweb• JMS/Storm• MongoDB/MySql

Our Machine Learning Stack

• Python• Numpy/Scipy/Pandas• Bottle (RESTful Server)

So, where is R then?

• Problem:– Data is stored in MongoDB

• Sales Lead Data• Sales Opportunity Data• Sales Contact Data

– It’s hard to view/digest/process data on the fly using MongoDB console• (X) Text processing for insight extraction?• (X) Prototype cool machine learning algorithms on the fly?

• Solution:– R and Rstudio Server

• Why not scala?• Why not python/ipython

MongoDB Console & Query

Rstudio Server

Pull MongoDB data into R data frame

• rmongodb (https://github.com/gerald-lindsly/rmongodb)

Transform Into a R data-frame

1 – Get the total count of your data set

2 – Construct Vectors for each column

3 – Loop through curser and insert values

Where are my apply functions?- Too bad. We are using mongo cursor :P

4 – Go into sub bson block to extract data (optional)

5 – Construct data frame and return

You are able to get the full example code here: http://goo.gl/tlyyXp

We now have a data frame to play with from MongoDB bson.

This is NOT a BIG DATA Stack

• It takes around 1 min to process 900Mb+ of bson from Mongo.

• NOT BIG data stack – Data should fit into the ram• Most of the data in the business world is not big

anyways.• It works fine for us (m1.large machine in AWS)

– CRM data is never big, not even after we pull in 3000+ additional signals.

– The term ‘Big-Data’ is seriously overrated, ‘Data Science’ however, is the key term here.

@Fliptop, we now use Rstudio to do

• Data Insight Extraction• Algorithm prototyping

If you REALLY want BIG Data

• Look into: HDFS + Pig/Hive + Hue(any other suggestion from the audience here?)

QA

• Winston Chen– Personal Blog: http://winston.attlin.com/– Twitter: @wingchen83– winston@fliptop.com

• Fliptop is hiring Data Scientists. Please email to:winston@fliptop.com